JPH0131046Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to the improvement of the buckle for attaching the backpack strap of backpacks such as school bags or backpacks. The mounting ring can move freely in both the direction of rotation and the direction of rotation, and the direction of the attachment ring can be changed freely according to the width of the shoulders, differences in height, or the degree of tightening of the strap on the back. The present invention relates to the provision of a buckle which is adapted to create an attached state.

(Prior Art and Its Disadvantages) Conventional backpack straps for backpacks, backpacks, and daypacks have been designed to provide a cushioning function to the band itself or to improve the width of the contact surface of the band in order to reduce the load on the shoulders. ,
Also, various attempts have been made, such as shifting the attachment position of the band at the attachment part to the left and right.

However, since the band is attached to a structure where all the loads of school bags, backpacks, etc. We have made various improvements to ensure sufficient load-bearing strength by attaching the end of the band to the mounting ring, and based on these requirements, we have determined the angle at which the band or the mounting ring should be sewn. This merely improved the ease of carrying it on one's back.

Due to these circumstances, when producing school bags, backpacks, etc., we predict in advance who will be using these school bags and backpacks, and calculate the average height, shoulder width, etc. of the target persons. It was common practice to determine the mounting position, mounting angle, etc. of the band and manufacture it for this average person. For this reason, when a person other than those with average height or shoulder width carries a school bag, backpack, etc. on their back, it is difficult for the school bag, backpack, etc. to come into close contact with the surface of the back, and it may put pressure on surfaces other than the shoulders. This has the disadvantage of causing a load to be placed in an unexpected position.

From this point of view, the attachment ring of the bag for carrying a school bag, backpack, etc. on the back is configured to be able to rotate in the vertical direction, and the attachment angle of the band can be changed accordingly as the position of carrying the bag on the back of the school bag or backpack is changed. is commonly done. However, only by vertically rotating the mounting ring, it is impossible to provide a natural fit that follows the width of the shoulders or the thickness of the chest, and may cause a feeling of pressure on the neck. The edge of the belt is slanted and comes into contact with the shoulder or upper arm, causing pain, or the belt tends to slip off the shoulder.

(Purpose and structure of the present invention) The backpack according to the present invention was devised for the purpose of avoiding such inconveniences in the conventional technology, and the buckle to which the belt is attached can be moved vertically or in the rotational direction. By making it possible to operate school bags, backpacks, etc., it is possible to easily follow and adhere the backpack to the surface of each person's back, and to adjust the direction and angle of the belt attached to the buckle to accommodate differences in height, shoulder width, thickness of the chest, upper and lower carrying positions, etc. This allows the belt to freely vary, thereby preventing pressure from forming on the shoulders or neck, eliminating the inconvenience of the belt tilting and biting into the shoulder, neck or upper arm, and ensuring a good fit on the back surface regardless of the top or bottom position of the back. The specific structure is as follows.

The backpack buckle is composed of a pair of attachment rings A and a mounting plate B to which the attachment rings A are attached. It is composed of a rotary shaft 2 that is supported on a shaft, and a mounting shaft 3 whose tip is an enlarged head 3a that protrudes in a direction generally orthogonal to the rotary shaft 2, and a mounting plate B is constructed on the surface of the substrate 4. A shaft hole 6 consisting of a pair of boss parts 5, 5, and a tapered wall 6a whose diameter is gradually reduced from the upper part to the lower part of the boss part 5.
The tapered wall 6a of the shaft hole 6 is split 7 upward from the lower edge, and each component piece is an elastically deformable locking tongue piece 6b.

(Function, Effect) Since the backpack according to the present invention has the above-mentioned configuration, the mounting ring A is attached to the mounting shaft 3 relative to the mounting plate B.
The mounting ring portion 1 of the mounting ring A is freely rotatable in the xx direction with the rotating shaft 2 as the pivot point.

From this, the band C fixed to the attachment ring part 1 of the buckle can be attached at any angle (x-x direction) with respect to the attachment part of the buckle, and the attachment direction (y-y direction) can be adjusted freely. It has the feature that it can be used freely.

As a result, when a backpack is attached to a school bag, backpack, etc., and a band C is attached to the attachment buckle, the band C will vary depending on the shoulder width, thickness of the chest, and height difference of the wearer of the school bag, backpack, etc. The mounting angle and mounting direction can be changed freely according to the
It has the feature of giving the wearer a comfortable and natural feeling when carrying it on their back.

Therefore, it is possible to carry a school bag, backpack, etc. on one's back with a band C that has an angle and orientation suitable for each wearer, so that the band C does not put pressure on the neck or shoulder area. It has the advantage that it does not expand outward and cause a feeling of slipping down, and that the band does not bite due to tilting or twisting of the band C, so there is no inconvenience such as a feeling of partial friction against the shoulder or upper arm. have.

That is, when the band C is attached by the above-mentioned buckle, the attachment angle of the band C in the x-x direction and the attachment direction in the y-y direction can be freely changed. A band that is always appropriate according to the individual height, shoulder width or chest width of the wearer who actually carries a school bag, backpack, etc., and the degree of tightening of Band C, and is therefore easy to wear and easy to apply loads to. It has the feature that an attachment relationship is created between the buckle and the buckle.

(Embodiment) A typical embodiment of the backpack buckle according to the present invention will be described below with reference to the attached drawings. First, the buckle is created by mutual locking between the mounting ring A and the mounting plate B. A decorative cover D is interposed in the middle, and bands C and C are attached to this.

The mounting ring A includes a mounting ring portion 1 having a winding rod 1c connected in an inclined manner between a pair of opposing side rods 1a and 1b having different lengths and shorter lengths, and a side rod 1a of this mounting ring portion 1, A rotary shaft 2 is pivotally supported between the free ends of 1b, and a rotary shaft 2 is provided approximately in the center of this rotary shaft 2, protruding in a direction orthogonal to the rotary shaft 2, and has a distal end connected to an enlarged head 3a. It consists of a mounting shaft 3. This mounting shaft 3 has a large head 3 at the tip.
Engage neck 3c between the jaw 3a' of a and the middle collar 3b
It is said that

Next, the mounting plate B has a pair of boss parts 5 erected on both sides of an oblong board 4 with rounded sides and one central part bulged laterally. 5, 5 has a shaft hole 6 whose diameter gradually decreases from the upper part to the lower part, and has a tapered wall 6a.
It is made up of.

The tapered wall 6a is divided upward from its lower edge into a plurality of leaves by splits 7, each of which is an elastically deformable locking tongue piece 6b, and the enlarged head part 3a of the mounting shaft 3 is divided into a plurality of leaves. The lower end of the tongue piece 6b engages with the jaw 3a' of the head 3a.

Further, mounting holes 10, 10 for the tapping screws 9, 9 are provided on the bulging side of the board 4, and similar mounting holes 10 are provided in the tongue portion 11 protruding from the side opposite to the bulging side.
The peripheral edge of the substrate 4 is formed into a slightly band-shaped raised thick portion 12.

The decorative cover D interposed between the mounting plate B and the mounting ring A includes a decorative plate 13 of the same shape that is attached to cover the mounting plate B, and a decorative plate 13 that protrudes laterally from this plate 13. The plate part 13 has holes 15, 15 into which the boss parts 5, 5 are inserted.
However, the free end 16 of the hanging ring 16 is also attached to the bearing part 14.
a, 16a are pivotally supported by a shaft rod 17.

The buckle having such a configuration is placed on the mounting surface of a school bag or backpack with the tongue portion 11 of the mounting plate B facing upward, and the decorative cover D is placed on top of the buckle and the tapping screws 9, 9 are placed.
It is inserted and locked from the mounting side of the school bag or backpack through the mounting holes 10, 10. Next, by pushing the mounting shaft 3 of each mounting ring A into the shaft hole 6 of the mounting plate B, the enlarged head 3a of the mounting shaft 3 is removed.
protrudes downward from the shaft hole 6 to lock the jaw 3a' to the lower edge of the locking tongue piece 6b, and also connects the collar 3b to the tapered wall 6b.
These mounting rings A are elastically engaged with the mounting plate B, and are mounted on the mounting plate B in a damping manner and rotatably.

In addition, if there is no need to hang school bags, backpacks, etc. in the above configuration, use mounting plate B.
The mounting plate B itself may be used as a decorative material and the interposition of the decorative cover D may be omitted, and the mounting plate B itself may be sewn directly to a school bag, backpack, etc.

Furthermore, depending on the structure of school bags, backpacks, etc., it may be necessary for the boss portion of the mounting plate B to protrude downward (in other words, in the opposite direction) from the board 4 without standing up on the board 4. In this case, since the shaft hole 6 is provided toward the boss portion 5 from the surface of the substrate 4, the structure of the shaft hole 6 itself is the same as described above.

Next, other embodiments shown in FIG. 5 and subsequent figures will be described.

First, FIGS. 5 to 7 show other embodiments of the mounting ring A, in which the mounting ring portion 1 of the mounting ring A is attached to the side rods 1a, 1.
b and winding rod 1c as well as this side rod 1a, 1
The rotating shaft 2 is provided at the free rod portions 1a', 1b' of the side rods 1a, 1b after connecting the spaces 1a and 1b with a reinforcing rod 1d to form a complete annular shape. The rotating shaft 2 is integrally molded with the mounting ring portion 1 by injection molding so that the central portion thereof is slightly curved toward the reinforcing rod 1d. That is, the rotating shaft 2
The shaft parts 2a, 2a are die-cut from the sides of the rod parts 1a', 1b', as shown in FIG.
By integrally molding both parts, the mounting ring A is able to reduce assembly costs and ensure a secure fit.

The embodiment shown in FIGS. 8 to 10 is a more accurate representation of the mounting plate B shown in FIG. 6b is divided into four leaves to facilitate the insertion of the mounting shaft 3 and to prevent the fitting portion from tilting due to load application.

Furthermore, the embodiment shown in FIGS. 12 to 15 is another embodiment of the decorative cover D, in which the plate 13 and the hole 1 are
Convex edges 18 and 19 are provided on the periphery of the lower surface of the plate 13, and mounting bosses 20, 20 into which the tapping screws 9, 9 are inserted are attached to the plate 13.
An insertion hole 21 for the tapping screw 9 is similarly provided on the lower surface of the bearing portion 14 as well.

The shaft rod 17 that pivotally supports the hanging ring 16 of the decorative cover D is provided integrally with the bearing portion 14, and is constructed by cutting out a mold from the side of the shaft rod 17. Similar to the structure, this has the effect of reducing parts assembly costs and providing reliable fitting to the hanging ring 16.

In the embodiment with the above configuration, the mounting ring A
To assemble the mounting plate B and the decorative cover D, simply attach the boss group 5 of the mounting plate B to the holes 15, 15 of the decorative cover D.
These can be integrated into one piece by simply fitting them together and tightening them with the tapping screws 9, 9, and then press-fitting the mounting shaft 3 of the mounting ring A into the shaft hole 6 of the boss portion 5. As a result, parts can be assembled easily and reliably without requiring special techniques, and assembly costs can be reduced.

In addition, the hanging ring 16 is usually prepared separately from the buckle, and the hanging ring 16 itself can be attached by simply assembling the buckle itself, whereas the hanging ring 16 has been used by separately attaching it near the attachment of the buckle. This also results in a reduction in assembly costs.

Furthermore, the mounting ring A is rotatably supported on the mounting plate B, and the rotating shaft 2 of the mounting ring A is rotatable relative to the mounting ring portion 1.
The band C wound around the winding rod 1c can be freely undulated in the vertical direction and swung in the rotating direction, and has the feature of creating an easy-to-wear state of carrying a school bag, backpack, or daypack. There is.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a typical embodiment of the backpack according to the present invention, Fig. 2 is an exploded perspective view of the same parts, Figs. 3 and 4 are perspective views showing the attached state, and Fig. 5 6 is a front view showing another embodiment of mounting ring A, FIG. 6 is a side view of the same, FIG. 7 is a plan cross-sectional view of the shaft portion, FIG. 8 is a plan view of mounting plate B, and FIG. 9 is a bottom view of the same. 10 is a sectional view of the same, and FIG. 11 is a partially cutaway side view showing a state in which the mounting ring A is assembled with the mounting plate B.
FIG. 12 is a plan view of the decorative cover D, FIG. 13 is a bottom view thereof, FIG. 14 is a sectional view taken along the line A--A, and FIG. 15 is a sectional view of the coaxial portion. 1... Mounting ring part, 2... Rotating shaft, 3... Mounting shaft, 4... Board, 5... Boss part, 6... Shaft hole, 7
...Split, 8... Pivotal support, 9... Tapping screw, 10... Mounting hole, 11... Tongue, 12...
Thick part, 13... Decorative plate, 14... Bearing part, 15... Hole, 16... Suspension ring, 17... Shaft rod,
18, 19...Convex edge, 20...Mounting boss, 21...
...insertion hole.

Claims (1)

[Claim for Utility Model Registration] An attachment ring of a backpack strap, a rotating shaft whose both ends are pivotally supported by the attachment ring, and an enlarged head projecting from the rotating shaft. It has a pair of mounting rings consisting of a mounting shaft, a pair of boss parts, and the boss part has a shaft hole made of a tapered wall whose diameter gradually decreases from the top toward the bottom, and the taper A backpack bag characterized by comprising a mounting plate having a wall cut vertically and serving as an elastically deformable locking tongue.